Efficiency of a Carnot engine is \( 50 \% \) when temperature of ou...

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Efficiency of a Carnot engine is \( 50 \% \) when temperature of outlet is \( 500 \mathrm{~K} \). In order to increase efficiency up to \( 60 \% \) keeping temperature of intake the same what is temperature of outlet
[CBSE PMT 2002, 06; Kerala PET 2011;
\( \mathrm{P} \)
Similar AMU (Med.) 2010]
(a) \( 200 \mathrm{~K} \)
(b) \( 400 \mathrm{~K} \)
(c) \( 600 \mathrm{~K} \)
(d) \( 800 \mathrm{~K} \)
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